High-heat-conductivity, oxygen-resistance, scale-prevention and wear-resistance composite pipe

Abstract

The invention provides a high-heat-conductivity, oxygen-resistance, scale-prevention and wear-resistance composite pipe, and belongs to the technical field of pipes. The high-heat-conductivity, oxygen-resistance, scale-prevention and wear-resistance composite pipe is provided with five layers of structures: a PE inner pipe scale prevention layer, a first hot melt adhesive layer, an EVOH oxygen resistance layer, a second hot melt adhesive layer and a PE outer pipe high-heat-conductivity and wear-resistance layer in sequence from inside to outside, wherein preparation materials of the PE inner pipe scale prevention layer comprise polyethylene and fluorine silicon materials; and preparation materials of the PE outer pipe high-heat-conductivity and wear-resistance layer comprise polyethylene,graphite oxide, nanometer silicon dioxide, ethyl silane coupling agents and machining auxiliaries. The high-heat-conductivity, oxygen-resistance, scale-prevention and wear-resistance composite pipe achieves excellent corrosion, scale and wear resistance and higher heat conduction efficiency, and is low in mass and simple in preparation.

Description

technical field [0001] The invention belongs to the technical field of pipe materials and relates to a composite pipe with high thermal conductivity, oxygen resistance, scale prevention and wear resistance. Background technique [0002] Corrosion of metal pipe fittings or inserts connected in the pipe, dirt on the inner wall of the pipe, easy wear on the outer wall, and low heat conduction efficiency of the pipe have always been problems in PE (polyethylene) heating pipes. Most heating pipe products cannot have both The performance of anti-corrosion, anti-scaling and anti-wear reduces the service life of the pipeline system, and the heat conduction efficiency also directly affects the heating effect. [0003] At present, there are also some studies on heating pipes with anti-corrosion, anti-scaling, anti-wear, and high heat transfer efficiency. For example, the Chinese utility model patent CN 204805750U adopts a number of steel ball interlayers in the main pipe wall and fil...

AI Technical Summary

Problems solved by technology

[0002] Corrosion of metal pipe fittings or inserts connected in the pipe, dirt on the inner wall of the pipe, easy wear on the outer wall, and low heat conduction efficiency of the pipe have always been problems in PE (polyethylene) heating pipes. Most heating pipe products cannot have both Anti-corrosion, anti-scaling, and anti-wear properties reduce the service life of the piping system, and the heat conduction efficiency also directly affects the heating effect

For example, the Chinese utility model patent CN 204805750U adopts a number of steel ball interlayers in the main pipe wall and fills with heat transfer oil. This design has good high temperature resistance and high heat transfer efficiency, but the preparation process is complicated, and the steel balls and silicone oil also increase the quality of the pipe.

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